You could buy a Nissan Leaf, which I think the the most efficient mainstream electric, and build out a really nice solar array and charge up more than a few mil

You could buy a Nissan Leaf, which I think the the most efficient mainstream electric, and build out a really nice solar array and charge up more than a few miles a day, but the cost of that array is going to be pretty rough. All said and done probably more than the car. That's just not feasible for most.